We are working on getting NAACCR data into the OMOP. The biggest hurdle thus far has been how to represent the characteristics of tumors, which @Mark_Danese talks about here . Our original plan was to map to LOINC but, because of functionality concerns, have since shifted towards SNOMED.
In NAACCR, site, histology and behavior are all represented as ICD-O-3 codes. The SEER website provides a document that maps from ICD-0-3 to ICD-9-CM, ICD-10 (Cause of death) and ICD-10-CM. The plan would be to rework this into a means to automate mapping from ICD-O-3 to ICD-9/10, and then map from ICD-9/10 to SNOMED.
@Patrick_Ryan mentions in a post that it’s possible to map from ICD9 to SNOMED using the CONCEPT_RELATIONSHIP table. Is the same true for ICD-10-CM? If needed, nlm.nih.gov also provides a mapping from SNOMED CT to ICD-10-CM.
Does this plan make sense? Alternatives?